The Nikhef colloquia are typically on Fridays at 11:00 in room H331. If you would like to receive colloquium email announcements, please subscribe to the low-traffic colloquium email list.
Friday 13 February, 11:00h, at Nikhef in H331
Speaker: Prof. Stephan Huber (University of Sussex)
Titel: Electroweak baryogenesis after LHC8 50'
I will give a status report of electroweak baryogenesis and the electroweak phase transition in popular extensions of the standard model, after the first LHC run. In the final part of the talk I will discuss a possible gravitational wave signal from the phase transition.
Friday 30 January, 11:00h, at Nikhef in H331
Speaker: Marco de Baar (Differ)
Title: "We’re on a high way to hell! The science and technology of nuclear fusion"
Abstract: Recently, the roadmap for nuclear fusion has been accepted and a new European consortium for the development of the science and technology for a nuclear fusion reactor has been set-up. In this lecture, it will be explained what fusion is, and we will how a fusion reactor should be designed. Then, I will give an overview of a few scientific and technological elements of the roadmap, with special emphasis on the development of:
-1- integrated scenarios with high fusion performance and plasma stability,
-2- solutions for the exhaust of heat and particles, and, if time allows
-3- the maintenance of ITER
Friday 16 January, 11:00h, at Nikhef in H331
Speaker: Andre Rubbia (ETH Zurich)
Title: "Prospects for a next-generation international long-baseline experiment"
A next generation very large-scale neutrino observatory must be capable of addressing key open questions and complete our knowledge in neutrino oscillations. Is there CP violation (CPV) in the leptonic sector ? are matter effects in long-baseline oscillations understood and what is the neutrino mass hierarchy (MH) ? The recent measurement of the theta_13 angle of the PMNS mixing matrix has now promoted these open questions as the next milestones, with exciting implications on our understanding of the matter-antimatter asymmetry in the Universe. These challenging physics goals can be uniquely addressed by a new very large underground detector coupled to a long-baseline neutrino beam. Such a new facility will also be an ideal observatory for solar, atmospheric and supernovae neutrinos, as well as for high sensitivity nucleon decay searches. The European neutrino community has early on recognised the importance of this sector and has been strongly supported to prepare the new experiment with the LAGUNA and LAGUNA-LBNO design studies. This consortium is now active in the construction of a large (300t) demonstrator at CERN (WA105). Following the European Strategy Recommendation and the P5 report in the USA, neutrino physics “entered the global era” and the European neutrino community is now exploring the possibility to participate in the ELBNF hosted by Fermilab.
Friday 9 January, 11:00h, at Nikhef in H331
Speaker: Laura Fabbieti (TU München)
Title: "What have Hadron-Hadron interactions to do with Neutron stars? Maybe nothing."
Strange hadrons might play a rather crucial role in understanding the composition of the innermost part of neutron stars. Indeed among the many models attempting to describe the core of neutron stars many envisage the presence of strange hadrons. First Hypotheses saw the formation of a condensate composed of antikaons and neutrons as forming the neutron star cores, but the later discovery of extremely massive neutron stars currently disfavor this scenario. More recently Hyperons have been considered more suited candidates within these models but experimental confirmations are still needed. In this talk the tools offered by experiments at accelerators to verify the above-mentioned models will be presented. The state of the art knowledge in the field will be summarized and future perspectives discussed.